function validateImg(){ 
	var explorer =navigator.userAgent ;	
	if(explorer.indexOf("MSIE") <0){
		window.location.reload();
	}else if(explorer.indexOf("Chrome") >= 0){
		$(".yz-r").attr('src',"verification.do");
	}else if(explorer.indexOf("Firefox") >= 0){
		location.reload(true);
	}else{
		window.location.reload();
	}
}   

function check(obj){
	var inputStr = $("#inputStr").val();    		
	var strCookie = document.cookie;    		
	var arrCookie = strCookie.split("; ");
	for(var i = 0; i < arrCookie.length; i++){	
		var arr = arrCookie[i].split("=");		
		if(arr[0]=="randomStr"){	
			if(inputStr != arr[1]){				
				$("#inputStr").val("");	
				$("#inputStr").focus();
				return false; 
			}			
		}						
    } 
}


    

  
    
    